What is the impact of inactivity or immobilization on muscle size and strength, considering evidence from the textbook?
a) Inactivity or immobilization leads to rapid muscle atrophy but has minimal impact on muscle strength.
b) Inactivity or immobilization primarily affects muscle strength, with little change in muscle size.
c) Inactivity or immobilization causes a decrease in muscle size and strength due to disuse, with the extent varying depending on the duration and intensity of immobility.
d) Inactivity or immobilization has no significant impact on muscle size or strength, as long as proper nutrition is maintained.